Sheet-metal can.



No. 678",09l. Pate lit'ed July 9, 190i,

M AMS SHEET METAL CAN.

(Agglication. filed Dec. 26, 1900.

(No Model.)

FIGJ.

Im enlbr:

NORRIS PEIERS 00., Mme-Lune. wAsumarumAt.

UNITED STATES PATENT OEEIQE.

MAX AMS, on NEW YORK, N. Y.

SHEET-M ETAL CAN.

SEECIFICATION forming part Of Letters Patent No. 678,091, dated July 9, 1901.

Application filed December 28; 1900. Serial No, 41,307. (No model.)

To all whom it may concern:

Be it known that I, MAX AMs, a citizen of the United States, and a resident of New York city, county and State of New York, have invented certain new and useful Improvements in Sheet-Metal Cans, of which the following is a specification.

This invention relates to an improved sheetmetal can and more particularly to effective means for rapidly opening the cover.

In the accompanying drawings, Figure 1 is a top view of an oblong sheet-metal can provided with my improvement. Fig. 2 is a section on line 2 2, Fig. 1; Fig. 3, a section on line 3 3, Fig. 1; Fig. 4, an enlarged section through a portion of the head before it is flanged, and Fig. 5 a top view of a round can provided with my improvement.

The letter a represents a sheet-metal can, and b is its countersunk cover, connected thereto by means of a'lap-joint which projects above the surface of the cover to form a flange 17. Within this flange and parallel thereto I provide the top of the cover with two or more concentric weakened circumferential lines. The drawings show three such lines o c 0 each composed of spaced indentations, the indentations of one line being staggered with those of the adjoining line or lines. I have found that by this particular arrangement the cover may be readily torn open, because when for any reason it refuses to be torn on the outermost line 0 the tear The slit 12 as Well as the tongue (1, extends across a corner, Fig. 1, or segment, Fig. 5,

of the cover and connects diagonally two different parts of the outermost weakened line 0. When the outer end of the tongue is grasped by a suitable key and rolled up, the main body of the cover will become detached along the weakened line crimes, the tearing off of the cover taking place simultaneously around the right and left,- along the flange b, so that the cover becomes detached in a quick and 56 effective manner.

What I claim is- A sheet-metal can having a head provided with a number of concentric weakened lines formed of spaced and staggered indentations, 5 5

combined with a tongue extending across the outermost weakened line, substantially as specified.

Signed by me at New York city, county and State of New York, this 27th day'ofDe 6o cember, 1900.

MAX AMS.

Witnesses:

1 v. BRIESEN, WILLIAM ScHULz. 

